Normal force between ball and cone?

[isukatphysics69]

Homework Statement

Homework Equations

f=ma
v^2/r

The Attempt at a Solution

∑F_X= FN
∑F_y= -mg
We are not given an angle, i would have put FNcos(θ).
I have my radius as 0.25 by relation of the triangles at that point of the height being .50m
so ∑F_X= FN = v^2/r = (1.2)^2/.25 = 6.25N

 

[isukatphysics69]

I forgot the mass...

 

[isukatphysics69]

Ok nevermind i just forgot to multiply by the mass converted to kilograms

 

[isukatphysics69]

does anyone know why i am only getting partial credit?

 

[haruspex]

∑FX= FN

F_N is not horizontal.

 

[isukatphysics69]

F_N is not horizontal.

Hi yes i marked this one solved guys i figured it out i wasn't thinking it through i needed the components. i have solved it and am now working on some impulse and momentum stuff with exploding objects

 

[isukatphysics69]

I'm sure i will be making another thread in T-15 minutos